再生塑料检测

再生塑料是通过将废旧塑料经过一系列物理和化学处理得到的塑料材料，其可循环利用，有助于减少塑料废弃物对环境的影响。

为确保再生塑料的质量和安全性，以下是一些常见的再生塑料检测项目和执行标准：

1. 成分分析：包括塑料类型鉴定、塑料原料比例分析等；

• ASTM D5203-03 Standard Test Methods for Determining the Chemical Composition of Aliphatic Hydrocarbon Solvents and Aromatic Solvents

2. 密度测定：用来评估塑料材料的密度；

• ASTM D1505-18 Standard Test Method for Density of Plastics by the Density-Gradient Technique

3. 熔流率测定：用以确定塑料材料的熔体流动性；

• ASTM D1238-18 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer

4. 力学性能测试：包括拉伸强度、断裂延伸率等；

• ASTM D638-14 Standard Test Method for Tensile Properties of Plastics

5. 热性能测试：包括热传导率、热稳定性等；

• ASTM D5930-18 Standard Test Method for Thermal Conductivity of Plastics by Means of a Transient Line-Source Technique

• ASTM E1269-19 Standard Test Method for Determining Specific Heat Capacity by Differential Scanning Calorimetry

6. 过程控制：包括再循环次数、处理温度、加工时间等；

• ISO 22000:2018 Food safety management systems -- Requirements for any organization in the food chain

7. 环境和健康安全性：包括挥发性有机物含量、重金属含量等；

• ASTM D5116-97(2015) Standard Guide for Small-Scale Environmental Chamber Determinations of Organic Emissions from Indoor Materials/Products

• ASTM F963-17 Standard Consumer Safety Specification for Toy Safety